This is the best sound machine out there. No questions asked! The Marpac Dohm white noise machine creates the soothing sound of rushing air to buffer noises such as neighbors outside, parents watching TV and siblings playing in the next room to help your child drift off to dreamland. The adjustable tone and volume enable you to create the ideal soothing environment for your child's nap or bedtime. With its compact size, the Dohm can fit in a diaper bag to provide a familiar sleep setting on the go. You will NOT want any other sound machine after you start using this machine. Here is the link to their website to purchase your own and don't forget to enter below for your chance to win a Marpac Dohm sound machine!